This boss appears as a massive oversized insect. It features six large, long legs, two of which contain massive claws, while the others are used for standing upwards. This insect's eyes are massive and are a deep, blazing red.

This creature hovers over Tal'Set by a small margin, and it is strikingly accurate to an actual mantis.

Upon beginning the fight, the Mantis will charge at the player either slashing them with its front legs or spraying them with acid. The best way to avoid these attacks is to stay away in order to effectively fight it. When it glows for the first time, it will begin to retreat and then knock down some walls, enlarging the arena.

For the first stage, use the Particle Accelerator at full charge since the Mantis will try to engage the player in close quarters. Once the Mantis has had enough, it will glow and then destroy several walls. Keep using the Particle Accelerator until the Mantis is finally defeated. Energy cells will spawn on the sides of the arena, giving the player access to unlimited ammo.